Run results for: flatMap vs reduce Saran

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:147.0) Gecko/20100101 Firefox/147.0

Browser: Firefox 147

Operating system: Linux

Device Platform: Desktop

Date tested: 6 months ago

reduce with array push

9K/s

flatMap

3K/s

View exact numbers

Test name	Executions per second
✓ reduce with array push	9,330 Ops/sec
flatMap	2,536 Ops/sec

Script Preparation code:

var arr = Array(10_000).fill(0)

Tests:

reduce with array push
arr.reduce((acc, x) => { acc.push(x); acc.push(x); return acc; }, [])
flatMap
arr.flatMap(x => [x, x])